mirror of https://github.com/mpv-player/mpv
130 lines
3.9 KiB
C
130 lines
3.9 KiB
C
#ifndef __ST_HEADER_H
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#define __ST_HEADER_H 1
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// for AVIStreamHeader:
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#include "wine/avifmt.h"
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#ifndef _WAVEFORMATEX_
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#define _WAVEFORMATEX_
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typedef struct __attribute__((__packed__)) _WAVEFORMATEX {
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WORD wFormatTag;
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WORD nChannels;
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DWORD nSamplesPerSec;
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DWORD nAvgBytesPerSec;
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WORD nBlockAlign;
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WORD wBitsPerSample;
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WORD cbSize;
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} WAVEFORMATEX, *PWAVEFORMATEX, *NPWAVEFORMATEX, *LPWAVEFORMATEX;
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#endif /* _WAVEFORMATEX_ */
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#ifndef _BITMAPINFOHEADER_
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#define _BITMAPINFOHEADER_
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typedef struct __attribute__((__packed__))
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{
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int biSize;
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int biWidth;
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int biHeight;
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short biPlanes;
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short biBitCount;
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int biCompression;
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int biSizeImage;
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int biXPelsPerMeter;
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int biYPelsPerMeter;
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int biClrUsed;
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int biClrImportant;
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} BITMAPINFOHEADER, *PBITMAPINFOHEADER, *LPBITMAPINFOHEADER;
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typedef struct {
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BITMAPINFOHEADER bmiHeader;
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int bmiColors[1];
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} BITMAPINFO, *LPBITMAPINFO;
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#endif
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// Stream headers:
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typedef struct {
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demux_stream_t *ds;
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struct codecs_st *codec;
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unsigned int format;
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int inited;
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float delay; // relative (to sh_video->timer) time in audio stream
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// output format:
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int sample_format;
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int samplerate;
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int samplesize;
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int channels;
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int o_bps; // == samplerate*samplesize*channels (uncompr. bytes/sec)
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int i_bps; // == bitrate (compressed bytes/sec)
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// in buffers:
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int audio_in_minsize; // max. compressed packet size (== min. in buffer size)
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char* a_in_buffer;
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int a_in_buffer_len;
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int a_in_buffer_size;
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// decoder buffers:
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int audio_out_minsize; // max. uncompressed packet size (==min. out buffsize)
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char* a_buffer;
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int a_buffer_len;
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int a_buffer_size;
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// output buffers:
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char* a_out_buffer;
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int a_out_buffer_len;
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int a_out_buffer_size;
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// void* audio_out; // the audio_out handle, used for this audio stream
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void* afilter; // the audio filter stream
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#ifdef DYNAMIC_PLUGINS
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void *dec_handle;
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#endif
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// win32-compatible codec parameters:
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AVIStreamHeader audio;
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WAVEFORMATEX* wf;
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// codec-specific:
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void* context; // codec-specific stuff (usually HANDLE or struct pointer)
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unsigned char* codecdata; // extra header data passed from demuxer to codec
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int codecdata_len;
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} sh_audio_t;
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typedef struct {
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demux_stream_t *ds;
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struct codecs_st *codec;
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unsigned int format;
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int inited;
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float timer; // absolute time in video stream, since last start/seek
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// frame counters:
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float num_frames; // number of frames played
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int num_frames_decoded; // number of frames decoded
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// timing (mostly for mpeg):
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float pts; // predicted/interpolated PTS of the current frame
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float i_pts; // PTS for the _next_ I/P frame
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// output format: (set by demuxer)
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float fps; // frames per second (set only if constant fps)
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float frametime; // 1/fps
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float aspect; // aspect ratio stored in the file (for prescaling)
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int i_bps; // == bitrate (compressed bytes/sec)
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int disp_w,disp_h; // display size (filled by fileformat parser)
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// output driver/filters: (set by libmpcodecs core)
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unsigned int outfmtidx;
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void* video_out; // the video_out handle, used for this video stream
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void* vfilter; // the video filter chain, used for this video stream
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int vf_inited;
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#ifdef DYNAMIC_PLUGINS
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void *dec_handle;
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#endif
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// win32-compatible codec parameters:
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AVIStreamHeader video;
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BITMAPINFOHEADER* bih;
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void* ImageDesc; // for quicktime codecs
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// codec-specific:
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void* context; // codec-specific stuff (usually HANDLE or struct pointer)
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} sh_video_t;
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// demuxer.c:
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sh_audio_t* new_sh_audio(demuxer_t *demuxer,int id);
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sh_video_t* new_sh_video(demuxer_t *demuxer,int id);
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void free_sh_audio(sh_audio_t *sh);
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void free_sh_video(sh_video_t *sh);
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// video.c:
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int video_read_properties(sh_video_t *sh_video);
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int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps);
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#endif
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